The function of IFNK (interferon kappa, Ensembl gene identifier ENSG00000147896) is as follows. May play a role in the regulation of immune cell function. Cytokine that imparts cellular protection against viral infection in a species-specific manner. Activates the interferon-stimulated response element signaling pathway. It is able to directly modulate cytokine release from monocytes and dendritic cells. Binds heparin. .