Predicted to enable S100 protein binding activity; identical protein binding activity; and structural molecule activity conferring elasticity. Predicted to be involved in regulation of RNA splicing and regulation of voltage-gated calcium channel activity. Predicted to be located in several cellular components, including costamere; extracellular exosome; and sarcolemma. Predicted to colocalize with membrane raft. Used to study autoimmune disease. Orthologous to human AHNAK (AHNAK nucleoprotein). [provided by Alliance of Genome Resources, Apr 2022]