Enables protein serine/threonine kinase activity. Involved in muscle tissue development. Acts upstream of or within protein phosphorylation and skeletal muscle tissue development. Predicted to be active in cytoplasm and nucleus. Is expressed in tail mesenchyme; tongue; and vertebral axis musculature. Orthologous to human SRPK3 (SRSF protein kinase 3). [provided by Alliance of Genome Resources, Apr 2022]