Catalyzes the first step in phosphatidylcholine biosynthesis. Phosphorylates choline. ATP + choline = ADP + H(+) + phosphocholine Less efficient with Mn(2+). Optimum pH is 10. Phospholipid metabolism; phosphatidylcholine biosynthesis; phosphocholine from choline: step 1/1. Belongs to the choline/ethanolamine kinase family.