Predicted to enable alpha-actinin binding activity. Predicted to be involved in positive regulation of cell-cell adhesion and signal transduction. Predicted to be located in several cellular components, including adherens junction; nuclear lumen; and plasma membrane. Predicted to be active in cell-cell junction and cytoplasm. Orthologous to human MAGI1 (membrane associated guanylate kinase, WW and PDZ domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]