Predicted to enable RNA binding activity. Acts upstream of or within several processes, including flagellated sperm motility; mitochondrion morphogenesis; and negative regulation of mitochondrial RNA catabolic process. Located in several cellular components, including acrosomal vesicle; perinuclear region of cytoplasm; and sperm flagellum. Part of ribonucleoprotein complex. Is expressed in ovary and seminiferous cord. Orthologous to human SLIRP (SRA stem-loop interacting RNA binding protein). [provided by Alliance of Genome Resources, Apr 2022]