Predicted to enable beta-catenin binding activity. Predicted to be involved in bundle of His cell-Purkinje myocyte adhesion involved in cell communication; regulation of heart rate by cardiac conduction; and regulation of ventricular cardiac muscle cell action potential. Predicted to be located in adherens junction; fascia adherens; and lamellipodium. Human ortholog(s) of this gene implicated in arrhythmogenic right ventricular dysplasia 13. Orthologous to human CTNNA3 (catenin alpha 3). [provided by Alliance of Genome Resources, Apr 2022]