She confirmed her resignation, telling LaPresse she was not given a cabinet post, and that was one of the big reasons for why she decided to leave politics so soon after being re-elected in her Montreal riding.
Blais, who is 64, said she will take the National Assembly’s $150,000 transition allowance as she has no plans to work elsewhere.
The former journalist said she plans to enjoy her good health, especially after losing her husband, Jean-Guy Faucher to cancer in March.
Blais represented Saint-Henri-Sainte-Anne for eight years, since 2007.
Premier Couillard must call a by-election in the riding within the next six months.
Saint-Henri-Sainte-Anne has been a Liberal stronghold since its creation in 1994.