Enables calcium ion binding activity. Involved in cardiac muscle contraction; diaphragm contraction; and response to metal ion. Located in contractile fiber. Human ortholog(s) of this gene implicated in dilated cardiomyopathy 1Z; hypertrophic cardiomyopathy; and hypertrophic cardiomyopathy 13. Orthologous to human TNNC1 (troponin C1, slow skeletal and cardiac type). [provided by Alliance of Genome Resources, Apr 2022]