Enables mRNA 3'-UTR binding activity. Acts upstream of or within positive regulation of translation. Predicted to be located in cytoplasm. Predicted to be part of ribonucleoprotein complex. Predicted to be active in cytosol and nucleus. Is expressed in several structures, including genitourinary system; gut; liver; and nervous system. Orthologous to human RBMS3 (RNA binding motif single stranded interacting protein 3). [provided by Alliance of Genome Resources, Apr 2022]