Enables 2'-5'-oligoadenylate synthetase activity and double-stranded RNA binding activity. Predicted to be involved in several processes, including defense response to other organism; negative regulation of type I interferon-mediated signaling pathway; and regulation of cytokine production. Predicted to act upstream of or within innate immune response. Predicted to be located in cytoplasm and plasma membrane. Predicted to be active in cytosol; membrane; and nucleoplasm. Orthologous to human OAS3 (2'-5'-oligoadenylate synthetase 3). [provided by Alliance of Genome Resources, Apr 2022]