Predicted to enable caspase binding activity and protein serine/threonine kinase activity. Predicted to be involved in several processes, including cellular response to organic cyclic compound; negative regulation of intracellular signal transduction; and positive regulation of interferon-beta production. Predicted to be part of preribosome, small subunit precursor. Predicted to be active in cytosol. Orthologous to human RIOK3 (RIO kinase 3). [provided by Alliance of Genome Resources, Apr 2022]