The Angels optioned Peralta to Triple-A Salt Lake on Monday.
The move corresponds with the Angels reinstating Ryan Zeferjahn (knee) from the 15-day injured list. Peralta joined the big club Sept. 7 after spending most of the season in Triple-A, but in just four major-league appearances he allowed 12 runs (nine earned) on 14 hits and six walks while striking out seven across 9.2 innings.