Your Query returns 4 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
mus309AY0608577227
mus309AE0036927227
mus309NM_0795957227blm    RecQ    DmBlm    CG6920    DmKu70    gesta1   
mus309NT_0337777227blm    RecQ    DmBlm    CG6920    DmKu70    gesta1   

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* OMIM link based on symbol match for human and mouse.

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Text2Knowledge ... Yong Huang 2002