Predicted to enable several functions, including beta-tubulin binding activity; calcium-dependent outer dynein arm binding activity; and dynein heavy chain binding activity. Predicted to act upstream of or within cell chemotaxis; cilium-dependent cell motility; and regulation of flagellated sperm motility. Predicted to be located in 9+2 motile cilium and axoneme. Is expressed in central nervous system and pancreas trunk epithelium. Orthologous to human EFCAB1 (EF-hand calcium binding domain 1). [provided by Alliance of Genome Resources, Apr 2022]