Scalpel will also handle German title Hotel Very Welcome, by Sonja Heiss, at Perspective Deutsches Kino and Panorama title The Bubble, by Israel's Eytan Fox, which bowed at Toronto.
This marks the first time former Celluloid executive Menahem has handled a competition title at one of the major festivals since branching out on his own with Scalpel.
In Memory Of Myself centres around a young man (Christo Jivkov) who enters a Jesuit monastery in Venice but is overcome by doubts before his ordination.
It is Constanzo's second film after his debut, Private, won Locarno's Golden Leopard in 2004. Menahem handled Private, selling it to more than 40 territories.
In Memory of Myself was produced by Mariuo Gianani of Offside, with Medusa, which is handling Italian distribution.
Jivkov's co-stars include Filippo Timi, Marco Baliani, Andrè Hennicke, and Fausto Russo Alesi.
Hotel Very Welcome, meanwhile, is a first feature by Heiss about Western tourists traveling to India and Thailand.