Important for structural integrity of the central apparatus in the sperm tail and for flagellar motility.
Subcellular locations: Cytoplasm, Cytoskeleton, Cell projection, Cilium, Flagellum, Cytoplasm, Cytoskeleton, Cilium axoneme
Associated with microtubules. Detected on the sperm flagellum . Localizes in the cilium axoneme in a SPEF1-dependent manner (By similarity).
Highly expressed in testis.