Predicted to enable troponin T binding activity. Predicted to contribute to actin binding activity. Involved in regulation of muscle contraction. Part of troponin complex. Human ortholog(s) of this gene implicated in arthrogryposis multiplex congenita and distal arthrogryposis type 2B1. Orthologous to human TNNI2 (troponin I2, fast skeletal type). [provided by Alliance of Genome Resources, Apr 2022]