Trypsin is an activator of all of the following enzymes EXCEPT
Actions of trypsin: 

Digestion of proteins
Curdling of milk
Once formed, itself converts trypsinogen into trypsin (autocatalytic action)
Conversion of chymotrypsinogen into chymotrypsin
Polycarboxypeptidses into carboxypeptidase.
Chymotrypsinogen
Pepsinogen
Proelastase
Procolipase