Enables double-stranded RNA binding activity; microtubule binding activity; and single-stranded RNA binding activity. Acts upstream of or within mechanosensory behavior and spermatid development. Located in manchette. Is expressed in central nervous system; dorsal root ganglion; metanephros; sensory organ; and trigeminal nerve. Orthologous to human STRBP (spermatid perinuclear RNA binding protein). [provided by Alliance of Genome Resources, Apr 2022]