Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Acvrinp1NT_03929910090
Acvrinp1BC05900510090Acvri1    Acvrip1   
Acvrinp1NM_01582310090Acvri1    Acvrip1    mKIAA0705   

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

Google

Text2Knowledge ... Yong Huang 2002