Your Query returns 13 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Gucy1a3NM_021896100901200016O07Rik    139396
GUCY1A3BC0126279606GC-SA3    GUC1A3    GUCSA3    GUCA3    139396
GUCY1A3BC0283849606GC-SA3    GUC1A3    GUCSA3    GUCA3    139396
GUCY1A3AY4139379606139396
GUCY1A3AY4139389598
GUCY1A3AY41393910090139396
GUCY1A3AY0347779606139396
GUCY1A3NM_0008569606GUCA3    GC-SA3    GUC1A3    GUCSA3    139396
GUCY1A3NM_1757789913GUCY   
Gucy1a3NT_07838410090139396
Gucy1a3BC05732710090139396
GUCY1A3NT_0166069606139396
Gucy1a3NM_01709010116SGC    Gucy1a1   

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

Google

Text2Knowledge ... Yong Huang 2002