Predicted to enable U6 snRNA binding activity; calcium-dependent protein binding activity; and pre-mRNA binding activity. Predicted to be involved in several processes, including mRNA cis splicing, via spliceosome; positive regulation of RNA splicing; and positive regulation of nucleocytoplasmic transport. Predicted to be located in cytoplasm and nucleoplasm. Predicted to be part of Prp19 complex; U2-type catalytic step 1 spliceosome; and U2-type catalytic step 2 spliceosome. Orthologous to human RBM22 (RNA binding motif protein 22). [provided by Alliance of Genome Resources, Apr 2022]