Predicted to enable mRNA binding activity and pre-mRNA binding activity. Predicted to be involved in mRNA splice site selection; positive regulation of mRNA splicing, via spliceosome; and regulation of alternative mRNA splicing, via spliceosome. Predicted to act upstream of or within several processes, including alternative mRNA splicing, via spliceosome; negative regulation of excitatory postsynaptic potential; and negative regulation of mRNA splicing, via spliceosome. Predicted to be located in nucleoplasm. Predicted to be part of ribonucleoprotein complex. Predicted to be active in cytoplasm and nucleus. Orthologous to human CELF4 (CUGBP Elav-like family member 4). [provided by Alliance of Genome Resources, Apr 2022]