Predicted to enable cytokine activity and type I interferon receptor binding activity. Predicted to be involved in several processes, including B cell activation; lymphocyte activation involved in immune response; and positive regulation of peptidyl-serine phosphorylation of STAT protein. Predicted to be active in extracellular space. Orthologous to human IFNK (interferon kappa); PARTICIPATES IN cytokine mediated signaling pathway; Jak-Stat signaling pathway; Retinoic acid-inducible gene (RIG) I-like receptor signaling pathway; INTERACTS WITH bisphenol A; cadmium dichloride; trichloroethene.