Your Query returns 12 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Acas2NM_08057510090AceCS2    1110032O15Rik    Acas2l   
Acas2NM_01981110090ACAS    Acas1    AceCS1    1110017C11Rik   
ACAS2BC0121729606ACS    ACSA    AceCS    dJ1161H23.1   
ACAS2BC0101419606ACS    ACSA    AceCS    dJ1161H23.1   
ACAS2AY4179549606
ACAS2AY4179559598
ACAS2AY41795610090
ACAS2NM_0186779606ACS    ACSA    AceCS    dJ1161H23.1   
ACAS2NM_1392749606ACS    ACSA    AceCS    dJ1161H23.1   
Acas2NT_03921010090
Acas2BC05143210090AceCS1    ACAS    1110017C11Rik   
ACAS2NT_0283929606

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

Google

Text2Knowledge ... Yong Huang 2002