Forms part of a complex involved in intraflagellar transport (IFT), the bi-directional movement of particles required for the assembly, maintenance and functioning of primary cilia. Plays a role in early embryonic development. Expressed ubiquitously during early embryonic development. Expression is detected at 3 hours post fertilization (hpf) and reaches a peak at 20 hpf. Individuals display a number of developmental defects, including dorsalization and formation of ectopic tail. Belongs to the IFT46 family.