Strength in soybeans supported canola, but huge Canadian canola supplies and transportation problems overhung the market.
May contract approached its 30-day moving average for the third straight day, but failed to close above it.
March canola lost $1.20 to $418.00 per tonne, with open interest dwindling ahead of delivery period next week.
Most-active May canola added 10 cents to $429.90 per tonne.
May-July spread widened to a July premium of $9.80.
Chicago March soybeans gained 20-3/4 U.S. cents at US$14.14-1/4 per bushel.
NYSE Liffe Paris May rapeseed eased 0.6 percent.
Malaysian May palm oil gained 0.8 percent.
Canadian dollar was trading at $1.1045 versus the U.S. dollar or 90.54 U.S. cents at 1:27 p.m. CST (1927 GMT), up from Thursday's close at $1.1136 to the greenback, or 89.80 U.S. cents.
Canada weekly canola crushings rise 1.7 percent.