Predicted to enable mRNA binding activity. Predicted to be involved in mRNA splice site selection. Predicted to act upstream of or within mRNA processing. Predicted to be located in nuclear speck. Predicted to be part of U1 snRNP and U2-type prespliceosome. Is expressed in central nervous system and retina. Orthologous to human LUC7L3 (LUC7 like 3 pre-mRNA splicing factor). [provided by Alliance of Genome Resources, Apr 2022]