Height is 'a function of' age in children. [=the height of children increases as their age increases]
His bad health has prevented him from being able to 'function' effectively in recent weeks.
Her chief/main/primary/principal 'function' is to provide expert legal advice.
(..) - Snaps you out of the dream. - We gonna feel a kick with this sedation? YUSUF: That's the clever part. I customised the sedative to leave inner-ear function unimpaired. That way, however deep the sleep, the sleeper still feels falling. Or tipping. The trick is to synchronise a kick (..)2010 Inception
(..) Good night. YUSUF: The compound we'll be using to share the dream... ...creates a clear connection between dreamers... ...whilst accelerating brain function. - In other words, more time on each level. Brain function in the dream will be about times normal. And when you enter a dream within (..)2010 Inception