Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
BCNG2NM_00822610090HAC1    Hcn2    602781
BCNG2AC0055599606HCN2    602781
BCNG2NM_0011949606HAC-1    BCNG-2    HCN2    602781

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

Google

Text2Knowledge ... Yong Huang 2002