The gene IDs that are not mapping are not native to mouse.
To learn more about the cross-species annotation, and which annotation tracks have more information about these genes, try a query against the mm10 genome at http://genome.ucsc.edu/.
An example in the UCSC mm10 genome browser with a gene you referenced (Sgol2) offers these annotation choices:
Your search resulted in multiple matches. Please select a position:
Sgo2a (ENSMUST00000027202.8) at chr1:57995971-58025899 - Mus musculus shugoshin 2A (Sgo2a), transcript variant 1, mRNA. (from RefSeq NM_199007)
Ppp2ca (ENSMUST00000020608.2) at chr11:52098681-52127778 - Mus musculus protein phosphatase 2 (formerly 2A), catalytic subunit, alpha isoform (Ppp2ca), mRNA. (from RefSeq NM_019411)
Knstrn (ENSMUST00000134661.7) at chr2:118814003-118837696 - Mus musculus kinetochore-localized astrin/SPAG5 binding (Knstrn), mRNA. (from RefSeq NM_026412)
Spag5 (ENSMUST00000045026.3) at chr11:78301529-78322457 - Mus musculus sperm associated antigen 5 (Spag5), transcript variant 1, mRNA. (from RefSeq NM_017407)
Kif2c (ENSMUST00000065896.8) at chr4:117159639-117182639 - Mus musculus kinesin family member 2C (Kif2c), transcript variant 1, mRNA. (from RefSeq NM_134471)
Dynll1 (ENSMUST00000009157.3) at chr5:115297110-115300999 - Mus musculus dynein light chain LC8-type 1 (Dynll1), mRNA. (from RefSeq NM_019682)
Dynll1 (ENSMUST00000112090.1) at chr5:115298505-115300912 - Acts as one of several non-catalytic accessory components of the cytoplasmic dynein 1 complex that are thought to be involved in linking dynein to cargos and to adapter proteins that regulate dynein function. Cytoplasmic dynein 1 acts as a motor for the intracellular retrograde motility of vesicles and organelles along microtubules. May play a role in changing or maintaining the spatial distribution of cytoskeletal structures (By similarity). (from UniProt P63168)
NCBI RefSeq genes, curated subset (NM_*, NR_*, NP_* or YP_*)
NM_001177867.1 at chr1:57985340-58025897
NM_199007.2 at chr1:57995974-58026277
NM_001195687.1 at chr8:63924694-63952170
Mouse Aligned mRNA Search Results
BC023855 - Mus musculus shugoshin-like 2 (S. pombe), mRNA (cDNA clone IMAGE:5346771), partial cds.
BC044797 - Mus musculus shugoshin-like 2 (S. pombe), mRNA (cDNA clone IMAGE:4953838), partial cds.
BC052742 - Mus musculus shugoshin-like 2 (S. pombe), mRNA (cDNA clone MGC:63378 IMAGE:6833875), complete cds.
Non-Mouse Aligned mRNA Search Results
KJ903881 - Synthetic construct Homo sapiens clone ccsbBroadEn_13275 SGOL2 gene, encodes complete protein.
BC035764 - Homo sapiens shugoshin-like 2 (S. pombe), mRNA (cDNA clone IMAGE:5551931), partial cds.
BC048349 - Homo sapiens shugoshin-like 2 (S. pombe), mRNA (cDNA clone IMAGE:5555637), complete cds.
BC092412 - Homo sapiens shugoshin-like 2 (S. pombe), mRNA (cDNA clone MGC:102910 IMAGE:30383194), complete cds.
AB527364 - Synthetic construct DNA, clone: pF1KE0311, Homo sapiens SGOL2 gene for shugoshin-like protein 2, without stop codon, in Flexi system.
AM392582 - Synthetic construct Homo sapiens clone IMAGE:100002290 for hypothetical protein (SGOL2 gene).
AM392984 - Synthetic construct Homo sapiens clone IMAGE:100002291 for hypothetical protein (SGOL2 gene).
CU690576 - Synthetic construct Homo sapiens gateway clone IMAGE:100022748 5' read SGOL2 mRNA.
CU690577 - Synthetic construct Homo sapiens gateway clone IMAGE:100022748 3' read SGOL2 mRNA.
JU474441 - TSA: Macaca mulatta Mamu_377541 mRNA sequence.
Hope that helps!