is this organ present in other living organisms as well?
Yes it is present in all vertebrates but its precise form and arrangement varies widely.
Pancreas
Pancreatic tissue is present in all vertebrates, but its precise form and arrangement varies widely. There may be up to three separate pancreases, two of which arise from ventral buds, and the other dorsally. In most species (including humans), these "fuse" in the adult, but there are several exceptions. Even when a single pancreas is present, two or three pancreatic 
where is the pancreas gland located and what does it do It is located in the abdomen behind the stomach and functions as a gland which diseases are caused if this organ does not operate at its best? Diabetes can a human live normally if this organ is taken out from their system? It is possible for a person to live without a pancreas, provided that the person takes insulin for proper regulation of blood glucose concentration and pancreatic enzyme supplements to aid digestion.
wiki:11558016
Pancreas [SEP] Other animals
Pancreatic tissue is present in all vertebrates, but its precise form and arrangement varies widely. There may be up to three separate pancreases, two of which arise from ventral buds, and the other dorsally. In most species (including humans), these "fuse" in the adult, but there are several exceptions. Even when a single pancreas is present, two or three pancreatic ducts may persist, each draining separately into the duodenum (or equivalent part of the foregut). Birds, for example, typically have three such ducts. In teleosts, and a few other species (such as rabbits), there is no discrete pancreas at all, with pancreatic tissue being distributed diffusely across the mesentery and even within other nearby organs, such as the liver or spleen.