Plasma membrane transporter for choline, ethanolamine, and carnitine; involved in the uptake of nitrogen mustard and the uptake of glycine betaine during hypersaline stress; co-regulated with phospholipid biosynthetic genes and negatively regulated by choline and myo-inositol; human FLVCR2 (MFSD7c), a choline transporter involved in Fowler syndrome, can complement the yeast null mutant