Lipid transfer protein involved in seed and ovule maturation and development, probably by regulating the fatty acids homeostasis during suberin and sporopollenin biosynthesis or deposition. Restricted to stamen, pollen and sporophytic tissues (PubMed:14671020, PubMed:24460633). Also detected, at low levels, in stems and leaves (PubMed:14671020). Inability to limit tetrazolium salt uptake in seeds, development of hair-like structures on seeds, altered pollen morphologies, deformed or collapsed, and decreased levels of omega-hydroxy fatty acids in seed coats. Belongs to the plant LTP family. Extended C-terminus.