Predicted to enable growth factor activity. Acts upstream of or within cell differentiation and negative regulation of cell population proliferation. Predicted to be located in cytoplasm. Predicted to be active in extracellular space. Is expressed in several structures, including alimentary system; ear; nervous system; reproductive system; and skeleton. Used to study stomach cancer. Orthologous to human TFF1 (trefoil factor 1). [provided by Alliance of Genome Resources, Apr 2022]