What's this amplifier filter configuration?
R2 and C2 form a first order low pass filter, the cut off frequency is \$ Fc =  \dfrac{1}{ 2 \pi R C}\$  where  \$R\$ is in Ohms, and \$C\$ is in Farads, so yes, it filters high frequencies.

C1 is probably for ac coupling the opamp, which is an inverting amplifier with output\$Vout = -\dfrac{R3}{R1} * Vin\$