Enables isocitrate dehydrogenase (NADP+) activity. Predicted to be involved in several processes, including NADP biosynthetic process; isocitrate metabolic process; and negative regulation of matrix metallopeptidase secretion. Predicted to act upstream of or within glyoxylate cycle and tricarboxylic acid cycle. Located in cytosol and peroxisome. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in D-2-hydroxyglutaric aciduria 2; acute myeloid leukemia; carcinoma (multiple); and lung cancer (multiple). Orthologous to human IDH2 (isocitrate dehydrogenase (NADP(+)) 2). [provided by Alliance of Genome Resources, Apr 2022]