The 27-year-old player was a member of the French team Stade Poitevin Poitiers last season.
Manavinezhad represented Iran in the 2023 Volleyball Nations League (VNL) Week 1, where Team Melli suffered three defeats against Japan, Poland and Slovenia and beat China.
He has joined the Italian side for an undisclosed fee.
Saturnia Catania is a volleyball club from Acicastello, Italy founded in 1965.