Predicted to be involved in mRNA splicing, via spliceosome. Predicted to act upstream of or within mRNA processing. Predicted to be located in nucleus. Predicted to be part of U2-type precatalytic spliceosome. Is expressed in several structures, including central nervous system; genitourinary system; liver; otocyst; and retina. Orthologous to human SMU1 (SMU1 DNA replication regulator and spliceosomal factor). [provided by Alliance of Genome Resources, Apr 2022]