The datasheet would be a really good place to find out.

But...

ADCON0 = %01000001 ; A/D converter ON, CLK = FOSC/16
ADCON1 = %11001010 ; Right justified, /16, AN0,AN1,AN2,AN4,AN5 as inputs, Vref into AN3

OR

ADCON1 = %11001001 ; Right justified,/16, AN1,AN2,AN3,AN4,AN5 as inputs, Vref = VDD

Will probably work.