Enables mRNA 3'-UTR binding activity and pre-mRNA intronic binding activity. Involved in endocardial cushion development; positive regulation of skeletal muscle fiber differentiation; and regulation of mRNA metabolic process. Located in cytoplasm. Is expressed in several structures, including embryo mesenchyme; genitourinary system; limb bud; musculature; and sensory organ. Orthologous to human RBM24 (RNA binding motif protein 24). [provided by Alliance of Genome Resources, Apr 2022]