Cilium- and flagellum-associated protein (PubMed:28495971, PubMed:29606301). In the olfactory epithelium, regulates the speed of activation and termination of the odor response and thus contributes to the robustness of olfactory transduction pathways (PubMed:28495971). Required for sperm flagellum assembly and stability (PubMed:29606301). Localizes to the midpiece of the sperm flagellum. Expressed in ciliated olfactory sensory neurons (at protein level) (PubMed:28495971). Expressed in testis, specifically in sperm (at protein level) (PubMed:29606301). Detected in pachytene spermatocytes and has increased expression in early and late spermatids. Male mice are infertile due to disrupted sperm flagellum assembly.