Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Ccha1aNM_00757810090la    tg    EA2    FHM    MHP    rkr    APCA    HPCA    MHP1    SCA6    leaner    rocker    alpha1A    Cacnl1a4    tottering    Cacna1a   
Ccha1aU7671610090

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

Google

Text2Knowledge ... Yong Huang 2002