Enables ribonucleoprotein complex binding activity. Involved in liver regeneration; postsynaptic modulation of chemical synaptic transmission; and response to testosterone. Located in several cellular components, including chromatin; cilium; and nuclear matrix. Is active in Schaffer collateral - CA1 synapse and glutamatergic synapse. Biomarker of myocardial infarction. Orthologous to human CSNK2B (casein kinase 2 beta). [provided by Alliance of Genome Resources, Apr 2022]