Enables mRNA 3'-UTR binding activity. Predicted to be involved in several processes, including miRNA metabolic process; negative regulation of cellular biosynthetic process; and negative regulation of low-density lipoprotein particle clearance. Predicted to act upstream of or within mRNA catabolic process and regulation of miRNA metabolic process. Located in dendrite; neuronal cell body; and nucleus. Orthologous to human KHSRP (KH-type splicing regulatory protein). [provided by Alliance of Genome Resources, Apr 2022]