Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Brn-3.1NM_13894510090ddl    Brn3c    Brn3.1    dreidel    Pou4f3   
BRN-3.1AF0434529606BRN3C    POU4F3   
brn-3.1U436587955

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

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Text2Knowledge ... Yong Huang 2002