Your Query returns 3 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
PtgiNM_00896810090Cyp8    Pgi2    Pgis    Cyp8a1    Ptgis   
PTGINM_0009619606CYP8    PGIS    CYP8A1    PTGIS   
PtgiBC06215110090Pgi2    Cyp8    Pgis    Cyp8a1    Ptgis   

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

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Text2Knowledge ... Yong Huang 2002