Whenever the Township or any duly constituted board, agency or department thereof is acting in or pursuant to the performance of a governmental function, carrying out a legislative mandate or in the exercise of its private right as a corporate body, any Township owned, operated or controlled building, structure, facility or use either existing or proposed shall not be subject to the provisions of this Ordinance. It is the intention of this section that whatever the Township may be authorized to do shall constitute a function of government and that whenever the Township shall act pursuant to granted authority, it acts as government and not as private entrepreneur and, therefore, is exempt from any Zoning and any land use act zoning provisions.