This gene encodes one of four mammalian counterparts to the fruit fly 'dunce' gene. The encoded protein has 3',5'-cyclic-AMP phosphodiesterase activity and degrades cAMP, which acts as a signal transduction molecule in multiple cell types. This gene uses different promoters to generate multiple alternatively spliced transcript variants that encode functional proteins. Protein Interaction Partner: MAGEA6, GOLGA8F, GOLGA8EP, COIL, TRAF1, ZBTB1, HDGFRP2, BIN1, MAPK1, PIAS4, PRKACA, UBC, SRC, SPTBN1, PIK3CA, LYN, GRB2, FYN, ARRB2, ARRB1, ABL1, APP, PAFAH1B1, CDK2, PPP3R1, PPP3CB, PPP3CA, GSK3B, CSNK1A1, ITSN1, SUMO2, GNB2L1, MDM2, Bub1, PDE4DIP, AKAP6 Protein Size: 507