The phrase "at a public function" is correct and usable in written English.
It can be used to refer to an event or gathering that is open to the general public, such as a ceremony, meeting, or celebration.
Example: "The mayor will be speaking at a public function this Saturday to discuss community improvements."
Alternatives: "during a public event" or "at a community gathering".
In early 2009 Asō suffered another setback when his finance minister resigned after appearing at a public function seemingly intoxicated.
His political cartoons sometimes drew anger from their targets, including the former Victorian premier Jeff Kennett, who turned his back on Tandberg at a public function.
After surviving two attempts by Congress to impeach him, owing to erratic behaviour, Arosemena was finally overthrown by a military coup in 1963, reportedly after a particularly embarrassing drunken incident at a public function; he was exiled to Panama.
I don't know if it was my imagination, but it seemed to me that every time there was a fireworks display at a public function and there was print advertising, Fireworks by Grucci was mentioned more prominently than it had been in recent years.
What about eating and drinking at a public function?
Only as regards private law organizations, outside legislative mandate (2a), various factors may point at a public function [27].
Then, sometimes, the metamodern author writes as a public function aimed at a general, non-discrete audience; she seeks, in these instances, not merely to determine which realities are for herself personally actionable, but to engage in acts of metaphysical authorship that are predicated equally upon content creation and externalized intertextual manipulation.
In the United States of America, I have a ticket to a public function at a public university, and without any cause or disruption, the authorities are throwing me out... See you in court, man.
Digital disease detection has a public function that is to improve health at population level.
Id. at 55. Halleck and Melendez note that lower courts also agree with the proposition that the administration of a public forum constitutes a public function.
The prevalence of arms in Venezuelan society was brought home in a notorious photo taken at a Jan . 23public function that showed a child member of the so-called Piedritas militia toting an AK-47 machine gun.
