PLD4 encodes the human gene, Phospholipase D family member 4. It may also be known as: Phospholipase D4; PLD 4; Choline phosphatase 4; Phosphatidylcholine-hydrolyzing phospholipase D4; C14orf175; phospholipase D family, member 4. The encoded protein is an enzyme with an amino acid length of 506 and a mass of 55.6 kDa. Other isoforms may exist. PLD4 is a member of the Phospholipase D family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Chicken.