Predicted to enable double-stranded RNA binding activity. Acts upstream of or within response to activity. Predicted to be located in myofibril. Predicted to be part of myosin complex. Is expressed in several structures, including brown fat; diaphragm; heart; limb segment; and skeletal musculature. Orthologous to human MYH4 (myosin heavy chain 4). [provided by Alliance of Genome Resources, Apr 2022]