Predicted to be involved in mRNA splicing, via spliceosome and regulation of alternative mRNA splicing, via spliceosome. Predicted to be located in nuclear speck. Predicted to be part of U2-type precatalytic spliceosome. Orthologous to human SMU1 (SMU1 DNA replication regulator and spliceosomal factor). [provided by Alliance of Genome Resources, Apr 2022]