Plays an inhibitory role on IL13 signaling by binding to IL13RA1. Involved in suppression of IL13-induced STAT6 phosphorylation, transcriptional activity and DNA-binding. Recruits TRAF3 and DISC1 to the microtubules (By similarity). Involved in kidney development and epithelial morphogenesis. Involved in the regulation of microtubule cytoskeleton organization. Is a negative regulator of microtubule stability, acting through the control of MAP4 levels. Involved in ciliogenesis (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 IFT88 (By similarity). Interacts with IL13RA1. Binds to microtubules, TRAF3 and DISC1 (By similarity). Interacts with MAP4 (By similarity). Microtubules. In the cilium, it is observed at the ciliary base, ciliary transition zone and ciliary tip. Belongs to the TRAF3IP1 family.