Plays a role in signal transduction by regulating the intracellular concentration of cyclic nucleotides cAMP and cGMP (PubMed:10725373, PubMed:10906126, PubMed:11050148, PubMed:16330539). Catalyzes the hydrolysis of both cAMP and cGMP to 5'-AMP and 5'-GMP, respectively (PubMed:10725373, PubMed:10906126, PubMed:11050148). {ECO:0000269|PubMed:10725373, ECO:0000269|PubMed:10906126, ECO:0000269|PubMed:11050148, ECO:0000269|PubMed:16330539}. This is the function of Ensembl gene identifier ENSG00000128655 (PDE11A, phosphodiesterase 11A).