Predicted to enable frizzled binding activity. Predicted to be involved in signal transduction. Predicted to act upstream of or within positive regulation of JUN kinase activity. Predicted to be located in cell junction. Predicted to be active in cell-cell junction and cytoplasm. Orthologous to human MAGI3 (membrane associated guanylate kinase, WW and PDZ domain containing 3). [provided by Alliance of Genome Resources, Apr 2022]