Your Query returns 5 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Negr1NM_17727410090Ntra    KILON    5330422G01Rik   
NEGR1BC0367719606MGC46680    KILON    Ntra   
NEGR1NM_1738089606Ntra    KILON    MGC46680   
Negr1NT_07840610090
NEGR1NT_0329779606

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

Google

Text2Knowledge ... Yong Huang 2002