The Collaborative International Dictionary
Functionate
Function \Func"tion\ (f[u^][ng]k"sh[u^]n), Functionate \Func"tion*ate\, v. i. To execute or perform a function; to transact one's regular or appointed business.
Wiktionary
functionate
vb. (context dated English) To execute or perform a function; to transact one's regular or appointed business.