The enzyme 2-carboxy-D-arabinitol-1-phosphatase catalyzes the reaction 2-carboxy-D-arabinitol 1-phosphate + H2O ⇌ \rightleftharpoons 2-carboxy-D-arabinitol + phosphateThis enzyme belongs to the family of hydrolases, to be specific, those acting on phosphoric monoester bonds. Wikipedia