Your Query returns 18 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
Rab5aBC0490577955zgc:56644    MGC56644    rab5al   
Rab5aNM_2009707955MGC56644    zgc:56644   
rab5aBC0478037955zehn1144   
rab5aBC0639667955zehn1144   
rab5AAJ2923204530
rab5AZ7393834305
rab5AAY0293014530
Rab5aNM_025887100902410015H04Rik    179512
Rab5aNW_04781310116
RAB5ABC0012679606RAB5    179512
RAB5ABC0182889606RAB5    179512
RAB5AAF4989369606179512
RAB5ANM_0041629606RAB5    179512
Rab5aNT_03965510090179512
Rab5aBC03437010090179512
Rab5aBC00484210090179512
RAB5ANT_0225179606179512
Rab5aNM_02269210116

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

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Text2Knowledge ... Yong Huang 2002