Enables intraciliary transport particle B binding activity and microtubule binding activity. Involved in centriole-centriole cohesion and microtubule anchoring at centrosome. Acts upstream of or within several processes, including animal organ development; chordate embryonic development; and plasma membrane bounded cell projection organization. Located in centriole; motile cilium; and photoreceptor connecting cilium. Part of kinesin II complex. Is expressed in several structures, including gonad; liver; neural tube; node; and spleen. Used to study dysostosis and polycystic kidney disease. Orthologous to human KIF3A (kinesin family member 3A). [provided by Alliance of Genome Resources, Apr 2022]