Predicted to enable pre-mRNA 3'-splice site binding activity; second spliceosomal transesterification activity; and zinc ion binding activity. Predicted to be involved in cellular response to heat; intracellular protein transport; and mRNA splicing, via spliceosome. Predicted to be located in cytosol and nuclear speck. Predicted to be part of catalytic step 2 spliceosome and small nuclear ribonucleoprotein complex. Orthologous to human SLU7 (SLU7 homolog, splicing factor). [provided by Alliance of Genome Resources, Apr 2022]