Involved in phospholipid biosynthesis. Catalyzes the first step in phosphatidylcholine biosynthesis (By similarity). ATP + choline = ADP + H(+) + phosphocholine Phospholipid metabolism; phosphatidylcholine biosynthesis; phosphocholine from choline: step 1/1. By wounding, and salt and osmotic stresses. Belongs to the choline/ethanolamine kinase family. Truncated N-terminus.