Predicted to enable RNA binding activity and protein serine/threonine kinase activity. Predicted to be involved in mitochondrial RNA processing; protein phosphorylation; and regulation of RNA metabolic process. Predicted to act upstream of or within apoptotic process and phosphorylation. Located in nuclear speck. Is expressed in brain; gut; male reproductive gland or organ; metanephros; and thoracic segment skeleton. Orthologous to human FASTK (Fas activated serine/threonine kinase). [provided by Alliance of Genome Resources, Apr 2022]