Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
ryanodine receptorNG_0003887227DRR    DRY    RyR    dya    CG10844    CT30357    Rya-r76CD    l(2)k00424    l(2)k04913    Rya-r44F   
ryanodine receptorA203599606

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

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Text2Knowledge ... Yong Huang 2002