Involved in several processes, including cellular response to mechanical stimulus; cellular response to nitric oxide; and response to vitamin A. Located in alveolar lamellar body; extracellular space; and multivesicular body. Biomarker of asthma; bacterial pneumonia; lung disease; newborn respiratory distress syndrome; and obesity. Human ortholog(s) of this gene implicated in lung disease (multiple); respiratory syncytial virus infectious disease; and toxic shock syndrome. Orthologous to human SFTPB (surfactant protein B). [provided by Alliance of Genome Resources, Apr 2022]