The video was released on March 5, 2012 via E-40's account on YouTube. An audio of the song was also released to YouTube on January 14 and has over 4.5 million views.Waka Flocka Flame, Kreayshawn, Roach Gigz, Bobby Brackins, Philthy Rich, B-Legit, DJ Amen and Chris Brown make cameo appearances in the music video.
When reviewing for The Block Brochure: Welcome to the Soil 2, Allmusic stated that "Minimal bass and scrappy attitude turn "Function" into a five-star pusher anthem." RapReviews also gave the song a positive review by saying "The Trend produced song is all the way new school with YG, IAmSu and Problem. 40 still steals the show though."