Enables ATP binding activity; magnesium ion binding activity; and protein serine/threonine kinase activity. Involved in intracellular signal transduction; protein phosphorylation; and regulation of mRNA processing. Predicted to be located in several cellular components, including chromatin; cytosol; and nuclear speck. Predicted to be active in cytoplasm and nucleus. Is expressed in several structures, including alimentary system; genitourinary system; integumental system; nervous system; and sensory organ. Orthologous to human SRPK1 (SRSF protein kinase 1). [provided by Alliance of Genome Resources, Apr 2022]