Predicted to enable actin filament binding activity and filamin binding activity. Acts upstream of or within several processes, including Notch signaling pathway; muscle cell development; and negative regulation of cell population proliferation. Located in adherens junction and fascia adherens. Is expressed in several structures, including heart; musculature; and tail somite. Used to study hypertrophic cardiomyopathy. Orthologous to human XIRP1 (xin actin binding repeat containing 1). [provided by Alliance of Genome Resources, Apr 2022]