The 23-year-old center back, who joined Esteghlal in 2019 from Foolad, has canceled his contract with the Tehran-based football team.
Media reports suggest that Gholami is going to join Boavista.
Gholami had also been linked with Shahr Khodro but he will reportedly sign a contract with the Primeira Liga club.
Boavista is one of the oldest clubs in Portugal and plays in the Primeira Liga, Portuguese football's top flight.