Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Mmu-L2NM_01185210090L2    Mmu-L    Oas1a    Oias1    Oias-1    Oas1g   
Mmu-L2BC01847010090Oas1a    Mmu-L    L2    Oas1g   

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

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Text2Knowledge ... Yong Huang 2002