Functions as part of axonemal radial spoke complexes that play an important part in the motility of sperm and cilia (By similarity). Functions as a protein kinase A-anchoring protein that scaffolds the cAMP-dependent protein kinase holoenzyme. May serve as a point of convergence for MAPK and PKA signaling in cilia .
Subcellular locations: Cytoplasm, Cytoskeleton, Cilium axoneme, Cytoplasm, Cytoskeleton, Flagellum axoneme