Your Query returns 2 Accession Numbers:

Query TermAccessionNCBI TaxonidSynonymsPhenotype (OMIM) *
U5snRNA63ANR_0019337227K2    U5    dU5    snRNA3    snRNA4    CR32908    U5-63BC    U5snRNA    snRNA:U5    snRNA[[3]]    snRNA:U5:63BC   
U5snRNA63ANT_0374367227K2    U5    dU5    snRNA3    snRNA4    CR32908    U5-63BC    U5snRNA    snRNA:U5    snRNA[[3]]    snRNA:U5:63BC   

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

Google

Text2Knowledge ... Yong Huang 2002