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. May play a role in chondrocyte maturation and skeletogenesis (By similarity). Component of the IFT complex B, at least composed of IFT20, IFT22, HSPB11/IFT25, IFT27, IFT46, IFT52, TRAF3IP1/IFT54, IFT57, IFT74, IFT80, IFT81, and IFT88. Interacts with IFT57, IFT88 and DAW1. Interacts with ARL13B. Interacts with TTC26/IFT56 (By similarity). Interacts with TTC25 (By similarity). Interacts with TTC30B (By similarity). Expression is concentrated at the cilium basal body but is also detected along the length of the cilium. Belongs to the IFT46 family.