a lymphokine involved in cell-mediated immunity, immunoregulation, and inflammation. It plays a role in the regulation of macrophage function in host defense through the suppression of anti-inflammatory effects of glucocorticoids. This lymphokine and the JAB1 protein form a complex in the cytosol near the peripheral plasma membrane, which may indicate an additional role in integrin signaling pathways. Also acts as a phenylpyruvate tautomerase. Note: This description may include information from UniProtKB.
Biological Process: carboxylic acid metabolic process; cell proliferation; cell surface receptor linked signal transduction; leukocyte migration; negative regulation of apoptosis; negative regulation of DNA damage response, signal transduction by p53 class mediator; positive regulation of B cell proliferation; positive regulation of cytokine secretion; positive regulation of fibroblast proliferation; positive regulation of peptidyl-serine phosphorylation; positive regulation of peptidyl-tyrosine phosphorylation; positive regulation of phosphorylation; prostaglandin biosynthetic process