Predicted to be involved in positive regulation of mRNA splicing, via spliceosome. Predicted to be part of spliceosomal complex. Orthologous to several human genes including RBMY1B (RNA binding motif protein Y-linked family 1 member B); RBMY1D (RNA binding motif protein Y-linked family 1 member D); and RBMY1E (RNA binding motif protein Y-linked family 1 member E). [provided by Alliance of Genome Resources, Apr 2022]