Predicted to enable identical protein binding activity. Predicted to be involved in spliceosomal tri-snRNP complex assembly. Located in nucleus. Part of protein-containing complex. Human ortholog(s) of this gene implicated in retinitis pigmentosa and retinitis pigmentosa 18. Orthologous to human PRPF3 (pre-mRNA processing factor 3). [provided by Alliance of Genome Resources, Apr 2022]