Predicted to enable polychlorinated biphenyl binding activity. Acts upstream of or within several processes, including negative regulation of T cell proliferation; negative regulation of cytokine production; and regulation of RNA metabolic process. Located in cytoplasm. Is expressed in heart and respiratory system. Used to study IgA glomerulonephritis. Human ortholog(s) of this gene implicated in IgA glomerulonephritis; asthma; and glomerulonephritis. Orthologous to human SCGB1A1 (secretoglobin family 1A member 1). [provided by Alliance of Genome Resources, Apr 2022]