The protein encoded by this gene binds CTNNB1 and prevents interaction between CTNNB1 and TCF family members. The encoded protein is a negative regulator of the Wnt signaling pathway. Two transcript variants encoding the same protein have been found for this gene.,CTNNBIP1, ICAT, beta-catenin-interacting protein 1,Cell Biology & Developmental Biology,Wnt/β-Catenin Signaling Pathway,CTNNBIP1