Predicted to enable mRNA binding activity. Predicted to be involved in mRNA splicing, via spliceosome. Predicted to act upstream of or within RNA splicing and mRNA processing. Predicted to be located in nuclear speck. Predicted to be part of U2-type catalytic step 2 spliceosome. Is expressed in central nervous system and sensory organ. Human ortholog(s) of this gene implicated in pontocerebellar hypoplasia. Orthologous to human CDC40 (cell division cycle 40). [provided by Alliance of Genome Resources, Apr 2022]