Enables malate dehydrogenase (decarboxylating) (NADP+) activity. Predicted to be involved in carboxylic acid metabolic process; regulation of NADP metabolic process; and response to hormone. Located in mitochondrion. Is expressed in several structures, including cardiovascular system; central nervous system; cranium; eye; and genitourinary system. Orthologous to human ME1 (malic enzyme 1). [provided by Alliance of Genome Resources, Apr 2022]