Regulator of the canonical Wnt signaling pathway. Acts by specifically binding phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2), translocating to the cell membrane and interacting with key regulators of the canonical Wnt signaling pathway, such as components of the beta-catenin destruction complex. Acts both as a positive and negative regulator of the Wnt signaling pathway, depending on the context: acts as a positive regulator by promoting LRP6 phosphorylation. Also acts as a negative regulator by acting as a scaffold protein for the beta-catenin destruction complex and promoting stabilization of Axin at the cell membrane. Promotes CTNNB1 ubiquitination and degradation. Involved in kidney development. {ECO:0000269|PubMed:17510365, ECO:0000269|PubMed:17925383, ECO:0000269|PubMed:19416806, ECO:0000269|PubMed:21304492, ECO:0000269|PubMed:21498506}. This is the function of Ensembl gene identifier ENSG00000184675 (AMER1, APC membrane recruitment protein 1).