Ross-Miller, who averaged 8.3 points and 3.5 assists in 27.3 minutes per game for the Aggies this past season, will be eligible to play immediately for new Auburn coach Bruce Pearl.
The 6-foot-1, 180-pound junior from Grand Prairie, Texas, drew national attention in February for his involvement in a postgame brawl between the Aggies and Utah Valley.
Ross-Miller was suspended by the Western Athletic Conference for two games for violating the conference's sportsmanship policy and did not play the rest of the season after he touched off the brawl by hurling the ball at Utah Valley's Holton Hunsaker as time expired in the Wolverines' 66-61 overtime victory in Orem, Utah.
Ross-Miller picked up the ball at midcourt and fired it at Hunsaker -- who is Utah Valley coach Dick Hunsaker's son -- from close range, hitting him in the leg. Fans also stormed the court at game's end, contributing to the chaos.
Ross-Miller was once a Kentucky commit before spending his freshman season at New Orleans in 2010-11 and debuting for the Aggies in 2012-13.
ESPN.com's Jeff Goodman contributed to this report.