Catalyzes N-methylation of phosphomonomethylethanolamine and phosphodimethylethanolamine, the two methylation steps required to convert phosphomonoethanolamine to phosphocholine. Unlike NMT1, NMT2 cannot utilize phosphoethanolamine as substrate in vitro. Phospholipid metabolism; phosphatidylcholine biosynthesis. No visible phenotype under normal growth conditions. Belongs to the class I-like SAM-binding methyltransferase superfamily. PEAMT family.