HARTFORD, Conn. — More than 2,100 graduate assistants working for the University of Connecticut have been recognized as part of a new union and will soon begin negotiating a labor contract with the administration.

The State Board of Labor Relations on Thursday determined that more than 50 percent of the graduate students at UConn’s campuses had signed a petition seeking to unionize. That prompted UConn, which remained neutral throughout the process, to officially recognize the union.

“I’m excited that UConn is recognizing graduate employees as employees with jobs on campus, since we teach thousands of students and bring in $150 million through grants and contracts a year,” said Madelynn von Baeyer, a research assistant in anthropology at UConn’s main Storrs campus.