Binds and transports small hydrophobic volatile molecules with a higher affinity for aldehydes and large fatty acids, including undecanal, palmitic acid, efficient aldehydes, benzenic aldehydes, heterocyclic aldehydes and aliphatic acids.
Subcellular locations: Secreted
Strongly expressed in the nasal structures, salivary and lachrymal glands, and lung . Expressed in the liver .