Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Olfr31XM_13889910090MTPCR53   
Olfr31NT_03959510090
Olfr31NM_14702710090MTPCR53    MOR274-1   

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

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Text2Knowledge ... Yong Huang 2002